public class var02
{
    public static void main(String[]agrs)//编写一个main方法
    {
            String name="jack";//字符串
            char gender='男';//字符
            int age=18;
            double score=88.9;
            System.out.print(name);
            System.out.println(gender);
            System.out.println(age);
            System.out.println(score);
    }
}
